Why do I get 0.00 for "" in a formula?

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I get the correct (blank) response for this formula:
=IF(ISNUMBER(DAVERAGE(EXT_DAILY_DATA,EXT_AIM_ACHIEVED_CLAMPED_START,APR_CRITERIA)),DAVERAGE(EXT_DAILY_DATA,EXT_AIM_ACHIEVED_CLAMPED_START,APR_CRITERIA),"")

but I get an incorrect response (0.00) for a formula created the same way:
=IF(ISNUMBER(DAVERAGE(EXT_DAILY_DATA,EXT_TIME_IN_START,MAR_CRITERIA)),DAVERAGE(EXT_DAILY_DATA,EXT_TIME_IN_START,MAR_CRITERIA),"")

I have already checked the cell formatting and it is the same.
 
The only possible explanation is that the second formula is calculating an
average that equals 0. Excel would not mistakenly return a 0 for a blank.

Biff
 

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